Sopa Images | Lightrocket | Getty ImagesOpenAI's short-form artificial intelligence video app Sora hit 1 million downloads less than five days after its launch in late September, according to an executive.Bill Peebles, head of Sora at OpenAI, shared the milestone in a post on X late Wednesday. He said Sora reached 1 million downloads even faster than ChatGPT, the company's popular AI chatbot that supports 800 million weekly active users.Sora allows users to generate short videos for free by typi...